Re: settlement

From: <Jun>
Date: Tue Apr 03 2007 - 07:57:00 EDT

First thing frist - check out what the API 653 says related to tank settlement. Get the numbers and then figure out what your options are (and the budget/downtime limitation). If you hit a wall then post your problem here and if youre in luck you may probably get the answer that youre looking for. Good Luck.

• Original Message ---- From: Omkar Deshpande <omkar_dd@yahoo.co.in> To: PipingDesign@yahoogroups.com Sent: Monday, April 2, 2007 11:32:44 PM Subject: Re: [PipingDesign] settlement

Hi,

Settlement can be classified as a Short term or a Long term. Short term is may because of Hydrotest. See if you can connect piping to nozzle after Hydrotest & Try to get long term settlement values from soil report or Civil discipline. Use this value in stress analysis. Also contact Tank engineer to get allowable loads. Achieve this by either piping flexibility or by using spring support. Try to locate first support away from nozzle.

Regards,
Omkar

ramar karuppaiah <ramarkaruppaiah@ yahoo.co. in> wrote: Hai ,In this case no problem as for my field experience.Normally the final spool would have been fabricated according to the field measurement. If it is not so cut the flange joints only with small length of pipe according to the gridh specification put additional pipe then weld without any force.Then do the necessary line test.(if its wrong sorry let me know the details please)

ramar
OL2K PROJECT, KUWAIT

• mahdi_amb <mahdi_amb@yahoo. com> wrote:

> Hi all
> In the LAVAN LPG project we have some LPG tanks.
> After hydro test
> according to soil reports we have 1 to 2.5 cm
> settlement and time of
> this test is 3 months. So according to project
> conditions we have we
> don't have enough time. And we have to change the
> piping routes. So
> here I need to help.
> What can I do?
> We want to not buy expansion joint or loose flange
> can we use CAN
> support (negative springs) or not?
> If we have to use expansion joint do we have special
> standard about
> this one or not?
>
> Please help me.
> Thanks advanced.
> Mahdi.N.R
>
>
>
>

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[Non-text portions of this message have been removed] Received on Tue Apr 03 07:57:00 2007